Autonomous System details

AS19977

Mayer Brown LLP  ·  mayerbrown.com

United States

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AS19977 – Mayer Brown LLP

Field Value
Country United States
Website mayerbrown.com
Hosted domains 6
IPv4 addresses 2,048
IPv6 addresses 0
ASN type Business
Registry arin
Allocated 10 years ago on Aug 02, 2016
Updated 10 years ago on Aug 02, 2016

IP Ranges

Netblock Company Num of IPs
143.58.0.0/22 Mayer Brown LLP 1,024
143.58.4.0/22 Mayer Brown LLP 1,024
143.58.0.0/24 Mayer Brown LLP 256
143.58.1.0/24 Mayer Brown LLP 256
143.58.2.0/24 Mayer Brown LLP 256
143.58.3.0/24 Mayer Brown LLP 256
143.58.4.0/24 Mayer Brown LLP 256
143.58.5.0/24 Mayer Brown LLP 256
143.58.6.0/24 Mayer Brown LLP 256
143.58.7.0/24 Mayer Brown LLP 256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS19977
                                                OrgID:          AS19977
                                                ASName:         AS19977
                                                ASNumber:       AS19977
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 6 domain names hosted across 6 IP addresses on this ASN.

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IP Address Domain Domains on this IP
143.58.5.109 ██████████ 1
143.58.1.250 ██████████ 1
143.58.1.247 ██████████ 1
143.58.4.81 ██████████ 1
143.58.1.248 ██████████ 1
143.58.1.249 ██████████ 1

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Peers

There are 3 peers for this ASN.

Peers Name
AS1239 Cogent Communications, LLC
AS174 Cogent Communications, LLC
AS3356 Level 3 Parent, LLC
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Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS174 Cogent Communications, LLC
AS3356 Level 3 Parent, LLC
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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

7 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
143.58.2.1 AS19977 Mayer Brown LLP 0.94ms from Chicago, US
143.58.0.1 AS19977 Mayer Brown LLP 0.35ms from Chicago, US
143.58.3.19 AS19977 Mayer Brown LLP 1.56ms from Chicago, US
143.58.7.19 AS19977 Mayer Brown LLP 1.02ms from Chicago, US
143.58.1.73 AS19977 Mayer Brown LLP 0.70ms from Chicago, US
143.58.4.1 AS19977 Mayer Brown LLP 0.61ms from Chicago, US
143.58.5.22 AS19977 Mayer Brown LLP 1.00ms from Chicago, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
1.1.145.105 AS23969 TOT Public Company Limited 7.22ms from Bangkok, TH
114.245.199.89 AS4808 China Unicom Beijing Province Network 3.71ms from Beijing, CN
165.88.8.121 AS6254 EG&G, Inc. 2.95ms from Boston, US
68.220.200.169 AS8075 Microsoft Corporation 0.23ms from Boydton, US
186.124.122.105 AS7303 Telecom Argentina S.A. 1.68ms from Buenos Aires, AR
108.167.219.73 AS3663 NetNet 8.87ms from Chicago, US
20.118.243.201 AS8075 Microsoft Corporation 0.23ms from Des Moines, US
162.13.230.137 AS15395 Rackspace Ltd. 1.34ms from London, GB
84.16.137.185 AS12714 PJSC MegaFon 1.50ms from Moscow, RU
197.232.94.9 AS36866 Jamii Telecommunications Limited 0.99ms from Nairobi, KE
91.202.58.201 AS2914 NTT America, Inc. 1.23ms from New York City, US
50.19.132.201 AS14618 Amazon.com, Inc. 0.16ms from Reston, US
200.243.162.57 AS4230 CLARO S.A. 1.05ms from Rio de Janeiro, BR
99.162.151.105 AS7018 AT&T Enterprises, LLC 19.18ms from Santa Clara, US
124.75.195.73 AS4812 China Telecom (Group) 3.15ms from Shanghai, CN
122.214.136.105 AS17506 ARTERIA Networks Corporation 1.51ms from Tokyo, JP
91.112.247.57 AS8447 A1 Telekom Austria AG 4.20ms from Vienna, AT
111.51.65.25 AS9808 China Mobile Communications Group Co., Ltd. 9.94ms from Xi'an, CN
78.29.25.185 AS8369 Intersvyaz-2 JSC 3.12ms from Yekaterinburg, RU
52.232.40.153 AS8075 Microsoft Corporation 0.25ms from Amsterdam, NL
24.96.177.25 AS12083 WideOpenWest Finance LLC 19.19ms from Atlanta, US
71.44.172.25 AS33363 Charter Communications, Inc 15.53ms from Atlanta, US
152.66.108.121 AS2547 Budapest University of Technology and Economics 0.53ms from Budapest, HU
216.43.129.249 AS7029 Windstream Communications LLC 13.53ms from Chicago, US
8.47.242.105 AS3356 Level 3 Parent, LLC 0.40ms from Dallas, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f5 143.58.5.56
traceroute to 143.58.5.56 (143.58.5.56): 64 hops max, 52 byte packets
5 [AS3356] 4.69.203.230 95.632 ms
6 [AS3356] 4.53.98.118 99.853 ms
7 *
8 *
9 *
10 [AS19977] 143.58.5.56 100.574 ms
Measurement taken from IPinfo ProbeNet in Edinburgh, GB
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS19977 at robtex.

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